CN109915066A - The fracturing device that waterpower and mortar mix sealing of hole use - Google Patents
The fracturing device that waterpower and mortar mix sealing of hole use Download PDFInfo
- Publication number
- CN109915066A CN109915066A CN201910314951.9A CN201910314951A CN109915066A CN 109915066 A CN109915066 A CN 109915066A CN 201910314951 A CN201910314951 A CN 201910314951A CN 109915066 A CN109915066 A CN 109915066A
- Authority
- CN
- China
- Prior art keywords
- water
- waterpower
- voltage tube
- hole
- rubber bag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention discloses the fracturing devices that a kind of waterpower and mortar mix sealing of hole use, and are related to plugging equipment field.The device includes first section waterpower hole packer, latter end waterpower hole packer, the first high-voltage tube and the second high-voltage tube；First section waterpower hole packer includes the first hollow pipe, casing cavity, exhaust pipe and the first rubber bag with water, casing cavity is run through at the both ends of first hollow pipe and the both ends of exhaust pipe, first rubber bag with water outer case sleeve chamber, casing cavity is provided with cement mortar entrance and cement mortar outlet, and the first rubber bag with water is provided with the first water inlet and water outlet；Latter end waterpower hole packer includes the second hollow pipe and the second rubber bag with water, second the second hollow pipe of rubber bag with water housing, and the second rubber bag with water is provided with the second water inlet；First high-voltage tube is connected between the first hollow pipe and the second hollow pipe；Second high-voltage tube is connected between water outlet and the second water inlet.The fracturing device that waterpower disclosed by the invention and mortar mix sealing of hole use can effectively promote sealing of hole effect.
Description
Technical field
The present invention relates to plugging equipment fields, fill more particularly, to the pressure break that a kind of waterpower and mortar mix sealing of hole use
It sets.
Background technique
With the continuous development of science and technology, the production of many enterprises is also increasing for the demand of coal, therefore coal
Industry can also generate a large amount of gas in the development of high speed, coal mining operation, and there is the hidden danger of explosion for gas, serious to restrict
The safety in production of coal mine.
By sealing of hole hydraulic fracturing device to coal wall or coal-bed flooding sealing of hole pressure break be prevent and treat Gas Disaster effective means,
When carrying out fracturing work, the leakproofness in hole has direct influence for the effect of fracturing work, water filling sealing of hole most at present
It is all by making its expansion achieve the effect that sealing of hole to rubber bag with water water filling, although in this manner can be very convenient quick
Completion sealing of hole, the leakproofness in right hole is poor, causes subsequent fracturing work effect poor, can not complete in coal seam well
The release of methane gas.
Summary of the invention
In view of this, it is an object of the invention to propose a kind of fracturing device that waterpower is used with mortar mix sealing of hole, with
Improve the above problem.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of fracturing device that waterpower is used with mortar mix sealing of hole, including first section waterpower hole packer, latter end waterpower sealing of hole
Device, the first high-voltage tube and the second high-voltage tube；
The first section waterpower hole packer include the first hollow pipe, casing cavity, exhaust pipe and the first rubber bag with water, described first
The both ends of hollow pipe and the both ends of the exhaust pipe are run through described sleeve pipe chamber and are extended to outside described sleeve pipe chamber, first rubber
Glue capsule is coated at described sleeve pipe chamber, and one end of described sleeve pipe chamber is provided with cement mortar entrance, the other end of described sleeve pipe chamber
It is provided with cement mortar outlet, one end that first rubber bag with water closes on the cement mortar entrance is provided with first and enters water
Mouthful, one end that first rubber bag with water closes on the cement mortar outlet is provided with water outlet；
The latter end waterpower hole packer includes the second hollow pipe and the second rubber bag with water, and second rubber bag with water is coated at
Second hollow pipe, second rubber bag with water are provided with the second water inlet；
First high-voltage tube is connected between first hollow pipe and second hollow pipe；
Second high-voltage tube is connected between the water outlet and second water inlet.
The fracturing device that waterpower as described above and mortar mix sealing of hole use, optionally, waterpower and mortar mix sealing of hole
The fracturing device used further includes third high-voltage tube, the 4th high-voltage tube and the 5th high-voltage tube, the third high-voltage tube, described first
Hollow pipe, first high-voltage tube and second hollow pipe are sequentially connected, and the 4th high-voltage tube enters with the cement mortar
Mouth connection, the 5th high-voltage tube are connect with first water inlet.
The fracturing device that waterpower as described above and mortar mix sealing of hole use, optionally, the 5th high-voltage tube and institute
It states and is provided with shut-off valve between the first water inlet.
The fracturing device that waterpower as described above and mortar mix sealing of hole use, optionally, waterpower and mortar mix sealing of hole
The fracturing device used further includes having casing, and described sleeve pipe is coated at first high-voltage tube and second high-voltage tube.
The fracturing device that waterpower as described above and mortar mix sealing of hole use, optionally, described sleeve pipe uses PVC material
It is made.
Compared with prior art, the beneficial effects of the present invention are:
The fracturing device that waterpower provided by the invention and mortar mix sealing of hole use can effectively promote sealing of hole effect, so as to
It can be good at completing the release of methane gas in coal seam during subsequent pressure operation, it is ensured that the safety of coal mining operation
Property.
Detailed description of the invention
Fig. 1 is the structural representation of the waterpower that first embodiment of the invention provides and the fracturing device that mortar mix sealing of hole uses
Figure.
Fig. 2 is the structural schematic diagram for the first section waterpower hole packer that first embodiment of the invention provides.
Fig. 3 is the structural schematic diagram for the latter end waterpower hole packer that first embodiment of the invention provides.
Fig. 4 is the structural representation of the waterpower that second embodiment of the invention provides and the fracturing device that mortar mix sealing of hole uses
Figure.
Description of symbols: 100- first section waterpower hole packer；The first hollow pipe of 110-；120- casing cavity；121- cement bonded sand
Starch entrance；The outlet of 122- cement mortar；130- exhaust pipe；The first rubber bag with water of 140-；The first water inlet of 141-；142- water outlet
Mouthful；The first limiting section of 150-；200- latter end waterpower hole packer；The second hollow pipe of 210-；The second rubber bag with water of 220-；221- second
Water inlet；The second limiting section of 230-；The first high-voltage tube of 300-；The second high-voltage tube of 400-；500- third high-voltage tube；600- the 4th is high
Pressure pipe；The 5th high-voltage tube of 700-；800- shut-off valve.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
Term " first ", " second ", " third " etc. are only used for distinguishing description, are not understood to indicate or imply relatively heavy
The property wanted.
In addition, term " parallel ", " vertical " etc. are not offered as requiring component absolute parallel or vertical, but can slightly incline
Tiltedly.It is not to indicate that the structure has to put down completely if " parallel " only refers to that its direction is more parallel with respect to for " vertical "
Row, but can be slightly tilted.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be directly connected, the connection inside two elements can also be can be indirectly connected through an intermediary.
For the ordinary skill in the art, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
First embodiment
Referring to Fig. 1, being used for the embodiment of the invention provides the fracturing device that a kind of waterpower and mortar mix sealing of hole use
To coal wall or coal-bed flooding sealing of hole pressure break in coal mining operation, to prevent Gas Disaster.The waterpower and mortar mix sealing of hole
The fracturing device used includes that first section waterpower hole packer 100, latter end waterpower hole packer 200, the first high-voltage tube 300 and second are high
The both ends of pressure pipe 400, the both ends of the first high-voltage tube 300 and the second high-voltage tube 400 respectively with first section waterpower hole packer 100 and latter end
Waterpower hole packer 200 connects.
Referring to Fig. 2, first section waterpower hole packer 100 includes the first hollow pipe 110, casing cavity 120,130 and of exhaust pipe
First rubber bag with water 140, wherein the both ends of the first hollow pipe 110 and the both ends of exhaust pipe 130 are run through casing cavity 120 and extended
To outside casing cavity 120, the first rubber bag with water 140 is coated at casing cavity 120, and the first robber cement is run through at the both ends of casing cavity 120
Capsule 140 is extended to outside the first rubber bag with water 140 and is sealed at the first rubber bag with water 140 with the first rubber bag with water 140 passing through.The
One hollow pipe 110, casing cavity 120, the distribution arrangement of exhaust pipe 130 and the first rubber bag with water 140 are consistent.
Further, for convenience by 140 fixation of the first rubber bag with water, waterpower provided in an embodiment of the present invention and mortar
The fracturing device that combination sealing of hole uses is cased with the first limiting section 150 outside the position of its opposite end also on casing cavity 120,
The first limiting section 150 on casing cavity 120 close to its opposite end collectively constitutes a limiting slot with casing cavity 120, is coated at set
First rubber bag with water 140 of lumen 120 is limited in the limiting slot and is connected and fixed with the first rubber bag with water 140.Described
One limiting section 150 preferably has preferable intensity using stainless steel or copper etc. and anti-corrosion works well, and metal material is made,
One end of casing cavity 120 is provided with cement mortar entrance 121, and the other end setting cement mortar of casing cavity 120 goes out
Mouth 122, cement mortar outlet 122 is used for towards latter end waterpower hole packer 200, cement mortar entrance 121 and cement mortar pump connects
It is logical, will pass through cement mortar pump pressurized delivered cement mortar into casing cavity 120, and 122 are exported to first section through cement mortar
Region slip casting between waterpower hole packer 100 and latter end waterpower hole packer 200.
The one end for the cement mortar entrance 121 that first rubber bag with water 140 closes on casing cavity 120 is provided with the first water inlet
141, one end of cement mortar that the first rubber bag with water 140 closes on casing cavity 120 outlet 122 is provided with water outlet 142, i.e., and the
One water inlet 141 is co-located at the side of first section waterpower hole packer 100, water outlet 142 and cement bonded sand with cement mortar entrance 121
Slurry outlet 122 is co-located at the other side of first section waterpower hole packer 100.First water inlet 141 with water pump for connecting, water outlet
142 with the second high-voltage tube 400 for connecting, and can be in the first water inlet 141 for a valve to be arranged between water pump, to lead to
It crosses water pump and fills the water sealing of hole to first section waterpower hole packer 100 and latter end waterpower hole packer 200.
Referring to Fig. 3, latter end waterpower hole packer 200 includes the second hollow pipe 210 and the second rubber bag with water 220, the second rubber
Glue capsule 220 is coated at the second hollow pipe 210, and the both ends of the second hollow pipe 210 extend to second through the second rubber bag with water 220
Rubber bag with water 220 is outer and seals at the second rubber bag with water 220 with the second rubber bag with water 220 passing through.Second rubber bag with water 220 leans on
One end of nearly first section waterpower hole packer 100 is provided with the second water inlet 221.
Further, in the embodiment of the present invention, second hollow pipe 210 is cased with second outside the position close to its both ends
Limiting section 230, on the second hollow pipe 210 close to the second limiting section 230 of its end positions housing with the second hollow pipe 210 jointly
Form a limiting slot, the second rubber bag with water 220 for being coated at the second hollow pipe 210 be limited in the limiting slot and with the second rubber
Glue capsule 220 is connected and fixed.Second limiting section 230 preferably has preferable intensity and anti-corrosion using stainless steel or copper etc.
The metal material that works well is made.
First high-voltage tube 300 is connected between the first hollow pipe 110 and the second hollow pipe 210, the connection of the second high-voltage tube 400
Between water outlet 142 and the second water inlet 221.First hollow pipe 110 is used for water receiving power far from one section of the second hollow pipe 210
Fracturing pump, water source needed for pumping offer pressure break so as to hydraulic fracturing.
Further, the fracturing device feeding that waterpower is used with mortar mix sealing of hole is accomplished fluently for convenience of when sealing of hole splits pressure
Hole in, the fracturing device that waterpower provided in an embodiment of the present invention and mortar mix sealing of hole use further includes having casing (figure being not
Show), casing is coated at the first high-voltage tube 300 and the second high-voltage tube 400.Casing uses the material with preferable hardness to be made,
Can use, but be not limited to PVC material, PVE material etc..In this way, the pressure break for using waterpower and mortar mix sealing of hole can be facilitated
Device is sent into the hole accomplished fluently.
When the fracturing device used using waterpower and mortar mix sealing of hole carries out sealing of hole pressure, pass through the first high pressure first
First hollow pipe 110 is connect by pipe 300 with the second hollow pipe 210, by the second high-voltage tube 400 by the first rubber bag with water 140
Water outlet 142 is connect with the second water inlet 221 of two rubber bag with water, and in 400 housing of the first high-voltage tube 300 and the second high-voltage tube
Casing.The fracturing device that the waterpower and mortar mix sealing of hole use integrally is sent into the hole accomplished fluently, guarantees pressure break water outlet 142
(i.e. the one end of the second hollow pipe 210 far from the first hollow pipe 110) arrives at fracture zone.By water pump to first section waterpower hole packer
The second rubber bag with water 220 water filling of 100 the first rubber bag with water 140 and latter end waterpower hole packer 200, makes the first rubber bag with water
140 and second rubber bag with water 220 expand, observe water injection rate and water-aspirator pressure, the pressure break for using waterpower and mortar mix sealing of hole
Device completes sealing of hole by the first rubber bag with water 140 of expansion and the second rubber bag with water 220.It switches off the pump and valve, makes first
Rubber bag with water 140 and the second rubber bag with water 220 remain inflated for.Open cement mortar pump pressurized delivered into casing cavity 120
Cement mortar, and infused through cement mortar outlet 122 to region between first section waterpower hole packer 100 and latter end waterpower hole packer 200
Slurry.After the cement mortar of injection in 48 hours solidifies completely, hydraulic fracturing pump can be opened and carry out hydraulic fracturing.In this process
In, due to the collective effect of the cement mortar of solidification and the first rubber bag with water 140 of expansion and the second rubber bag with water 220, can have
Effect promotes the sealing of hole effect for the fracturing device that waterpower is used with mortar mix sealing of hole, so as to energy during subsequent pressure operation
The enough release for completing methane gas in coal seam well, it is ensured that the safety of coal mining operation.
In conclusion the fracturing device that waterpower provided by the invention and mortar mix sealing of hole use can effectively promote sealing of hole effect
Fruit, to can be good at completing the release of methane gas in coal seam during subsequent pressure operation, it is ensured that coal mining
The safety of operation.
Second embodiment
Fig. 2-4 is please referred to, the embodiment of the invention provides the pressure break dresses that a kind of waterpower and mortar mix sealing of hole use
It sets, different from the first embodiment, the fracturing device that waterpower provided in this embodiment is used with mortar mix sealing of hole further includes
There are third high-voltage tube 500, the 4th high-voltage tube 600, the 5th high-voltage tube 700 and shut-off valve 800.Third high-voltage tube 500, first is hollow
Pipe 110, the first high-voltage tube 300 and the second hollow pipe 210 are sequentially connected, and third high-voltage tube 500 is pumped for hydraulic pressure to mention
For water source needed for pressure.4th high-voltage tube 600 is connect with cement mortar entrance 121, and the 4th high-voltage tube 600 is used for and cement bonded sand
Stock pump is connected will pass through cement mortar pump to region slip casting between first section waterpower hole packer 100 and latter end waterpower hole packer 200.
5th high-voltage tube 700 is connect with the first water inlet 141, and the 5th high-voltage tube 700 is for water pump so as to the first rubber bag with water 140
It is filled the water with the second rubber bag with water 220.Shut-off valve 800 is set between the 5th high-voltage tube 700 and the first water inlet 141, so as to
It fills the water to closing shut-off valve 800 to the first rubber bag with water 140 and the second robber cement so that the first rubber bag with water 140 and the second rubber
Water remains inflated for, so as to subsequent to region slip casting between first section waterpower hole packer 100 and latter end waterpower hole packer 200.
In conclusion the fracturing device that waterpower provided by the invention and mortar mix sealing of hole use can effectively promote sealing of hole effect
Fruit, to can be good at completing the release of methane gas in coal seam during subsequent pressure operation, it is ensured that coal mining
The safety of operation.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (5)
1. the fracturing device that a kind of waterpower and mortar mix sealing of hole use, which is characterized in that including first section waterpower hole packer, latter end
Waterpower hole packer, the first high-voltage tube and the second high-voltage tube；
The first section waterpower hole packer includes the first hollow pipe, casing cavity, exhaust pipe and the first rubber bag with water, and described first is hollow
The both ends of pipe and the both ends of the exhaust pipe are run through described sleeve pipe chamber and are extended to outside described sleeve pipe chamber, first robber cement
Capsule is coated at described sleeve pipe chamber, and one end of described sleeve pipe chamber is provided with cement mortar entrance, the other end setting of described sleeve pipe chamber
There is cement mortar outlet, one end that first rubber bag with water closes on the cement mortar entrance is provided with the first water inlet, institute
It states the first rubber bag with water and closes on one end of cement mortar outlet and be provided with water outlet；
The latter end waterpower hole packer includes the second hollow pipe and the second rubber bag with water, and second rubber bag with water is coated at described
Second hollow pipe, second rubber bag with water are provided with the second water inlet；
First high-voltage tube is connected between first hollow pipe and second hollow pipe；
Second high-voltage tube is connected between the water outlet and second water inlet.
2. the fracturing device that waterpower according to claim 1 and mortar mix sealing of hole use, which is characterized in that further include the
Three high-voltage tubes, the 4th high-voltage tube and the 5th high-voltage tube, the third high-voltage tube, first hollow pipe, first high-voltage tube
It is sequentially connected with second hollow pipe, the 4th high-voltage tube is connect with the cement mortar entrance, the 5th high-voltage tube
It is connect with first water inlet.
3. the fracturing device that waterpower according to claim 2 and mortar mix sealing of hole use, which is characterized in that the described 5th
Shut-off valve is provided between high-voltage tube and first water inlet.
4. the fracturing device that waterpower according to claim 1 and mortar mix sealing of hole use, which is characterized in that further include having
Casing, described sleeve pipe are coated at first high-voltage tube and second high-voltage tube.
5. the fracturing device that waterpower according to claim 4 and mortar mix sealing of hole use, which is characterized in that described sleeve pipe
It is made of PVC material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910314951.9A CN109915066A (en) | 2019-04-18 | 2019-04-18 | The fracturing device that waterpower and mortar mix sealing of hole use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910314951.9A CN109915066A (en) | 2019-04-18 | 2019-04-18 | The fracturing device that waterpower and mortar mix sealing of hole use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109915066A true CN109915066A (en) | 2019-06-21 |
Family
ID=66977827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910314951.9A Pending CN109915066A (en) | 2019-04-18 | 2019-04-18 | The fracturing device that waterpower and mortar mix sealing of hole use |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109915066A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201588649U (en) * | 2009-10-23 | 2010-09-22 | 内蒙古满世煤炭集团罐子沟煤炭有限责任公司 | Novel coal seam water infusion hole sealing device |
| CN203430473U (en) * | 2013-09-05 | 2014-02-12 | 西安科技大学 | Underground hydraulic fracturing drill hole sealing device of coal mine |
| CN204571912U (en) * | 2015-03-04 | 2015-08-19 | 黄琨 | Water filling hole sealing device |
| CN204609832U (en) * | 2015-03-26 | 2015-09-02 | 淮南大屯注浆工程有限公司 | A kind of coal mine gas quick fluid filling hole sealing device with pressure |
| CN105781606A (en) * | 2016-03-02 | 2016-07-20 | 重庆大学 | Method for sealing large-dip-angle downward coal-seam-penetrating gas extraction-drainage drill hole |
| CN205400661U (en) * | 2016-03-16 | 2016-07-27 | 中原工学院 | Colliery is hydraulic fracturing hole packer in pit |
| CN107191172A (en) * | 2017-07-10 | 2017-09-22 | 河南理工大学 | Sealing of hole, hydraulic fracturing and gas pumping integrative construction device and its construction method |
| CN210068062U (en) * | 2019-04-18 | 2020-02-14 | 重庆大学 | Fracturing device for hydraulic and mortar combined hole sealing |
-
2019
- 2019-04-18 CN CN201910314951.9A patent/CN109915066A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201588649U (en) * | 2009-10-23 | 2010-09-22 | 内蒙古满世煤炭集团罐子沟煤炭有限责任公司 | Novel coal seam water infusion hole sealing device |
| CN203430473U (en) * | 2013-09-05 | 2014-02-12 | 西安科技大学 | Underground hydraulic fracturing drill hole sealing device of coal mine |
| CN204571912U (en) * | 2015-03-04 | 2015-08-19 | 黄琨 | Water filling hole sealing device |
| CN204609832U (en) * | 2015-03-26 | 2015-09-02 | 淮南大屯注浆工程有限公司 | A kind of coal mine gas quick fluid filling hole sealing device with pressure |
| CN105781606A (en) * | 2016-03-02 | 2016-07-20 | 重庆大学 | Method for sealing large-dip-angle downward coal-seam-penetrating gas extraction-drainage drill hole |
| CN205400661U (en) * | 2016-03-16 | 2016-07-27 | 中原工学院 | Colliery is hydraulic fracturing hole packer in pit |
| CN107191172A (en) * | 2017-07-10 | 2017-09-22 | 河南理工大学 | Sealing of hole, hydraulic fracturing and gas pumping integrative construction device and its construction method |
| CN210068062U (en) * | 2019-04-18 | 2020-02-14 | 重庆大学 | Fracturing device for hydraulic and mortar combined hole sealing |
Non-Patent Citations (1)
| Title |
|---|
| 童碧;: "井下水力压裂钻孔囊袋式两堵多注封孔技术及应用", 煤矿安全, no. 02 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106285681B (en) | A kind of hard coal seam top plate fracturing device and method | |
| CN102628352B (en) | Multi-section fixed point hydraulic fracturing method | |
| CN105696967A (en) | Mining hole packer and hole packing method | |
| CN106194143B (en) | Carbon dioxide sends and splits ware | |
| CN101539028B (en) | Apparatus for preventing and controlling coal or rock dynamic disaster by high-pressure pulse water injection | |
| CN205063929U (en) | Colliery is sealed in pit and is pressed integration segmentation hydraulic fracturing device | |
| CN104034630A (en) | Fracturing liquid performance experimental system for geological transformation of oil and gas reservoir | |
| CN104314508A (en) | Hole sealing method for coal bed gas drainage drill hole | |
| CN207761627U (en) | A kind of oil well air water mixed water injection device | |
| CN109267983A (en) | Horizontal well refracturing device and method based on the complete well of the preset tubing string of naked eye | |
| CN104060965A (en) | Adjustable annular double-layer air bag hole sealing device and method for performing hole sealing | |
| CN103422845A (en) | Y-type reducing dual-channel high-pressure acidizing and fracturing well head device | |
| CN108086945A (en) | A kind of layer-through drilling separate type whole process gas drainage hole sealing device and its method for sealing | |
| CN204753611U (en) | Deep basal pit pressure -bearing water precipitation gas well gas bag plugging device | |
| CN103195470B (en) | Drilling construction Gas gathering-device | |
| CN109113637A (en) | A kind of brill downhole explosion and water filling or fracturing integrated hole packer and construction method | |
| CN204899914U (en) | Liquid gas piezometry appearance is annotated to negative pressure | |
| CN205330611U (en) | Mining hole packer | |
| CN204877416U (en) | High temperature high pressure multiple fracturing instrument | |
| CN204960882U (en) | Underground hydraulic fracturing drill hole sealing device of coal mine | |
| CN108915760A (en) | To hole pumping and mining method under a kind of underground coal mine | |
| CN109915066A (en) | The fracturing device that waterpower and mortar mix sealing of hole use | |
| CN103452496B (en) | Integral type of adopting thick oil thermal extraction note automatically switches and produces joint | |
| CN109113701A (en) | Using air as the anti-reflection technology of pulsating pressure-air creep pressure break and device of medium | |
| CN106223921B (en) | A kind of gas fracturing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |